http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전수경(Su Gyeong Jeon),이중환(Joong Hwan Lee),정영호(Yong Ho Jung),이다현(Da Hyun Lee),김준혁(Jun Hyeok Kim),나채선(Chae Sun Na),박충열(Chung Youl Park) 한국약용작물학회 2021 한국약용작물학회지 Vol.29 No.3
Background: Figwort (Scrophularia buergeriana Miq.) is a biennial plant, whose dried root has been used in traditional medicine. Here, we investigated a viral disease in S. buergeriana, characterized the disease symptoms, and sequenced the complete genome of the identified virus. Methods and Results: Disease symptoms and growth characteristics were compared between two groups of plants, that is, those that were grown from rootlets and those cultivated from seeds. Leaf samples were collected from both groups for RNA sequencing analysis. Primers were designed based on the obtained contig, and the complete genome sequence was determined via reverse transcription polymerase chain reaction and cloning. Viral symptoms were confirmed in figwort plants. The highest incidence of infections was observed at the end of July. The complete genome of Beet western yellows virus (BWYV) ADHS comprised 5,878 nucleotides and seven open reading frames. Phylogenetic analysis based on the nucleotide sequence of the complete genome confirmed that the BWYV ADHS isolate was related most closely to the LS isolate from Korea. Conclusions: This study is the first report of BWYV infection in figwort worldwide. The virus affects plant height and root weight. Control methods should be developed to minimize virus damage in figwort culture.
열역학적 계산에 의거한 온도에 따른 방사성 폐수 내 토륨 침전 특성
전수경 ( Su-gyeong Jeon ),김동수 ( Dong-su Kim ) 한국수처리학회 2023 한국수처리학회지 Vol.31 No.1
Thorium-containing radioactive wastewater has been produced from anthropogenic activities such as mining for rare-earth minerals. The removal of thorium from wastewater is important as it may harm humans and environment. Precipitation is one of the methods used for the removal of thorium. In this study, Pourbaix diagrams were used to examine changes in thorium precipitation aqueous solution with changing temperature. Through comparing these Pourbaix diagrams, the following conclusions are drawn: (i) at the same temperature condition, the boundary potential of Th<sup>4+</sup>-Th reaction decreases and boundary pH of Th<sup>4+</sup>-Th(OH)<sub>4</sub> reaction increases with decrease in ion activity of Th<sup>4+</sup>; (ii) the slope of the boundary of Th-Th(OH)<sub>4</sub> reaction decreases as temperature increases, which means pH has a greater influence on Th-Th(OH)<sub>4</sub> reaction at high temperature; and (iii) the stable area of Th<sup>4+</sup> and Th(OH)<sub>4</sub> decreases and increases, respectively with increasing temperature. Furthermore, the stable areas of Th(OH)<sub>4</sub> at 288 K, 298 K, and 318 K were estimated to be 90.7%, 93.1%, and 97.9%, respectively, of the area at 328 K. In conclusion, temperature increases decline the efficiency of thorium precipitate treatment.